Answer:
1,75 kg
Explanation:
1 kg = 1000 g
2.5 kg = 2.5 × 1000 g = 2500 g
2500 g - 750 g = 1750 g
1750 g = 1750 ÷ 1000 kg = 1.75 kg
Answer:
B
Step-by-step explanation: Trust
90 degrees should be right
The profit for 25 products sold and 150 products sold are 3159 and 19190.25 respectively.
<u><em>Explanation</em></u>
The profit of a company receives is given by the expression: ![0.15(855p - 315)](https://tex.z-dn.net/?f=0.15%28855p%20-%20315%29)
Simplifying this expression using distributive property, we will get .....
![0.15(855p - 315) \\ \\ = (0.15*855p)-(0.15*315)\\ \\ =128.25p-47.25](https://tex.z-dn.net/?f=0.15%28855p%20-%20315%29%20%5C%5C%20%5C%5C%20%3D%20%280.15%2A855p%29-%280.15%2A315%29%5C%5C%20%5C%5C%20%3D128.25p-47.25)
So, the simplified expression for profit will be: ![128.25p-47.25](https://tex.z-dn.net/?f=128.25p-47.25)
As
represents the number of products sold, so for finding the profit for 25 products sold and 150 products sold, <u>we need plug
and
separately into the above expression</u>.
For
, Profit ![=128.25(25)-47.25 = 3206.25-47.25= 3159](https://tex.z-dn.net/?f=%3D128.25%2825%29-47.25%20%3D%203206.25-47.25%3D%203159)
For
, Profit ![=128.25(150)-47.25 = 19237.50-47.25= 19190.25](https://tex.z-dn.net/?f=%3D128.25%28150%29-47.25%20%3D%2019237.50-47.25%3D%2019190.25)
For example:
x+2y=7
6x+7y=2
__________
x=7-2y *
6*(7-2y)+7y=2 **
__________
x=7-2y
42-12y+7y=2
__________
x=7-2y
-5y=-40
__________
x=7-2y
y=8
x=-9